US Bridges

Keyes ST over Coyote Creek

Fair

Santa Clara County, California · 1 MI E of 2nd ST · Structure no. 37C0087

Built
1954
71 years old, rebuilt 1975
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete Continuous
Length
208 ft
4 main spans
Daily traffic
32,111
2009 count
Owner
City
City or Municipal Highway Agency

About this bridge

Keyes ST over Coyote Creek is a concrete continuous tee beam carrying Keyes ST over Coyote Creek in Santa Clara County, California. It was built in 1954 and reconstructed in 1975, so it is 71 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 32,111 vehicles a day, roughly 6% of them trucks, projected to reach 41,904 by 2043. The structure is 208 ft (63.4 m) long and 113 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesKeyes ST
CrossesCoyote Creek
Location1 MI E of 2nd ST
RouteCity Street 0
Coordinates37.32734, -121.86148
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating34.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length208 ft (63.4 m)
Longest span60 ft (18.3 m)
Deck width113 ft (34.3 m)
Roadway width85 ft (26 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,111 (2009)
Projected traffic41,904 by 2043
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Keyes ST over Coyote Creek built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1975.

What condition is Keyes ST over Coyote Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does Keyes ST over Coyote Creek carry?

About 32,111 vehicles per day (2009 count), of which roughly 6% are trucks.

How long is Keyes ST over Coyote Creek?

The structure is 208 ft (63.4 m) long with a longest span of 60 ft (18.3 m) and a deck 113 ft wide.

Who owns Keyes ST over Coyote Creek?

It is owned by the City or Municipal Highway Agency.